The ratings of three road and rail stocks are down this week, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Kansas City Southern (KSU) earns an F (“strong sell”) this week, moving down from last week’s grade of D (“sell”). Kansas City Southern operates a railroad system that provides shippers with rail freight services in commercial and industrial markets of the United States and Mexico. The stock price has dropped 6.8% over the past month, worse than the 1.7% decrease the S&P 500 has seen over the same period of time. The stock’s trailing PE Ratio is 30.40. For a full analysis of KSU stock, visit Portfolio Grader.

Roadrunner Transportation Systems, Inc.’s (RRTS) rating weakens this week, dropping to an F versus last week’s D. Roadrunner Transportation Systems offers truck freight transportation services. The stock gets F’s in Earnings Revisions and Earnings Surprise. At $25.45, the stock is under the 50-day moving average of $25.52. Shares of the stock have been exchanging at an usually rapid pace, twice the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of RRTS stock.

Guangshen Railway Co. Ltd. Sponsored ADR Class H (GSH) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. Guangshen Railway is a provider of railroad passenger and freight transportation, as well as railway network usage and services. For a full analysis of GSH stock, visit Portfolio Grader.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.